I am new to the Go programming language and I have an assignment to create and interpreter but I am running into the following problem:
I want to define an Environment a
You need to define Environment
as:
type Environment struct {
parent *Environment // note that this is now a pointer
symbol string
value RCFAEValue
}
Otherwise the compiler has no way to figure out what the size of the Environment structure is. A pointer's size is known, but how big is something that contains itself? (And the inner struct contains itself as well, as does the inner inner struct, and so on.)
Creating the Environment will then look like:
Environment{&fun_Val.ds, fun_Val.param, exp.arg_exp.interp(env)}